Treatment of cereals



Dec. 19 1922.

- J. PROKOP.

TREATMENT OF CEREALS.

FILED DEC. 27. 1920.

FIG.

Patented Dec. ie, 1922.

JOSEF PROKOP, or rnnnunrcn, czEcI-ro-sLovAKIA.

TREATMENT OF CEREALS.

Application filed December 27, 1920. Serial No. 433,476.

T 0 all whom it may concern:

Be it known that I, Josnr Pnoxor, a citizen ofthe Czecho-Slovak Republic, residing at Pardubice, Czecho-Slovakia, have invented certain new and useful Improvements in the Treatment of Cereals, of which the fol lowing is a specification.

My invention relates to the treatment of cereals and more especially to a method of and apparatus for husking, sprouting, disbudding and polishing granular material and quite especially grain of all kinds.

The essential feature of my invention resides in the material to be treated being conveyed along an apparatus and this within a box in such wise that it will come to bear up against a section of a cylinder surface and will thus be taken along by the rough surface of the revolving cylinder in the direction in which this latter rotates, and will consequently be carried upward, where by aid of a finger or another rotary cylinder the grain is caught and raised in order to enable it then by its own proper weight to descend in the opposite direction on and above the ascending layer of grain, till it is again lead by a lower transverse wall to the cylinder surface to be once again taken along in the manner aforesaid. By these means, the grain is caused to circulate continuously within the box, resulting in its being operated upon in a thoroughly uniform manner.

In the drawings affixed to this specification and forming part thereof several modifications of an apparatus suitable for carrying this improved method into efiect and embodying my invention are illustrated by way of example. In the drawings Figs. 1 and 2 are vertical sections'of one modification, and

Fig. 3 is a pertinent horizontal section, while Fig. 4. is a vertical section of a modified form of construction.

Referring to the drawings, the apparatus disclosed in Figs. 1 to 3 comprises a cylinder 2 having a more or less rough surface and i being adapted to revolve about the axis 3 in the direction denoted by the arrow 1. The grain or the like to be dealt with bears up against a portion of this cylinder, and that within a suitably built box 4., the open part of which is applied to the cylinder 2.

As the cylinder 2 revolves, the grain is taken along in an upward direction (in which case it moves in the direction of rotation at a somewhat slighter speed than the roller surface) until it is caught up and caused to) rise either by the curved transverse section 5 (Fig. 1) or by intervention of a roller 6 (Fig. 2) having a smaller di- I ameter but a greater peripheral velocity than the cylinder 2. The grain then flows by its own proper weight on and above the upwardly ascending mass of grain, though in an opposite direction, back until it encounters the lower transverse wall 7 which serves to lead the grain once more toward the surface of the cylinder 2 whence it is again forced upwards. By these means, a continuous circulation of the grain within the box 4 is achieved, resulting in the material being brought in constantly repeating contact with the said cylinder and being operated upon in an absolutely uniform manner. The husking action is at the same time very favourably affected by the pressure which the upper layers, returning in an opposite direction, exert upon the lower, ascending layers.

The apparatus constructed in accordance with my invention may be operated either with a continuous or intermittent feed action, the box 4 being provided with suitable charging and outlet openings for the material to be treated, as also with a hinged bottom 7 for the final discharge thereof.

In the modification disclosed in Fig. 4, there is arranged within the box 4 an additional cylinder 8, the arrangement of said cylinder 8 being such that the grain will meet with no impediment in the course of its continuous circulation in the direction denoted by the arrows. Cylinder 8, as will be observed, is of smaller diameter than the working cylinder 2, and revolves positively within the ambient mass of grain or the, like, carrylng out the husking, sprouting or combination, a rotary cylinder having a covering about one fourth of said surface rough surface, a chamber applied to and covand a cylinder on top of said first cylinder 10 ering about one fourth of said surface and at the upper end of said chamber. an auxiliary rotary cylinder having a rough In testimony WhereofI aflix my signature. surface disposed Within said chamber. JOSEF PROKOP.

3. In a device of the kind described in Witnesses: combination, a rotary cylinder having a MILosLAv F. ERNBY, rough surface, a chamber applied to and FRANK C. RAMEH. 

